Roku Streaming Stick 4K supports Dolby Vision and HDR10+, promises 30% faster streaming – What Hi-Fi?

Roku has unveiled the Streaming Stick 4K, its fastest, most powerful video streaming stick to date, along with Roku OS 10.5.
Powered by a new quad-core processor that promises up to 30 per cent faster streaming than its predecessor, the Roku Streaming Stick…

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